sslivsize
sslivsize |
Purpose
Synopsis
function sslivsize(cipalg:string):integer
Argument
|
cipalg
|
Name of the cipher to consider
|
Return value
Size of a IV in bytes or
-1 if the cipher is not supported.
Example
The following statement generates a random IV for the default cipher algorithm:
sslrandomdata("myiv",sslivsize(""))
Further information
Some encryption algorithms require an initialisation vector (IV) in addition to the encryption key. Like the key, the IV is an array of bytes of a fixed size. This function returns the length (in bytes) of the IV required by a given symmetric cipher algorithm. A return value of
-1 indicates an unrecognised algorithm name: this property can be used to check whether a given algorithm is available.
Related topics
Module